Device for ventilating vehicles



R. '0. NICHOLS. DEVIGB FOR VENTILATING VEHICLES.

(No Model.)

Patented May 19; 1891.

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ROBERT C. NICHOLS, OF BOSTON, MASSACHUSETTS.

DEVICE FOR VENTILATING VEHICLES.

SPECIFICATION forming part of Letters Patent No. 452,383, dated May 19,1891.

Application filed February 16,1891- Serial No. 381,638. (No model.)

To all whom it may concern.-

Be it known that I, ROBERT C. NICHOLS, of Boston, in the county ofSufiolk, State of Massachusetts, have invented certain new and usefulImprovements in Devices for Ventilating Vehicles, of which the followingis a description sufficiently full, clear, and exact to enable anyperson skilled in the art or science to which said invention appertainsto make and use the same, reference being had to the accompanyingdrawings, forming part of this specification, in which- Figure 1 is anelevation showing my i1n proved device in use on a railway-car; Fig. 2,an end elevation of the ventilator; Fig. 3, a horizontal section of thesame Fig. 4, an end elevation, the screws being removed; and Figs. 5 and6 are perspective views of the current-directors, respectively, havingdifferent faces.

Like letters and figures of reference indicate corresponding parts inthe different figures of the drawings.

My invention relates especially to a device for ventilating street orrailway cars and simi lar vehicles; and it consists in certain novelfeatures hereinafter fully set forth and claimed, the object being toproduce'a simpler, cheaper, and more effective device of this characterthan is now in ordinary use.

The nature and operation of the improvement will be readily understoodby all conversant with such matters from the following explanation.

, In the drawings, A represents the car, and B the ventilator consideredas a whole.

The ventilator comprises a box, preferably rectangular in cross-section,which is arranged longitudinally of the car in any convenient position.monitor-roof 17, its ends projecting over the hoods d.

The box is divided centrally and longitudinally by a vertical partitionf into two compartments g h. The ends of the compartments are protectedby screens'i of gage suitable to prevent cinders from entering. Eachcompartment may be closed or partially closed by regulating-slides j,passing transversely through their outer walls 70. At intervals in thewalls openings on are formed, leading into the car-chamber. These open-As shown, it is disposed under the ings may be closed by slides 19. Atone side of the opening an in the compartment hahorizontally-arrangedvertically-inclined or beveled flange or current-director 'r is securedtransversely of the floor of said compartment. To the end of said flangeagainst the wall 70 a vertically-arranged laterally-beveled flange tissecured. The opposite faces of said flanges are vertical, as shown atvin Fig. 5, and flush with the adjacent opening m. Similar flanges r tare arranged in like manner at the opposite side of the correspondingopening m in the compartment g.

In the use of my improvement, the car beingsupposed to be traveling fromright to left as viewed in the drawings, cold air entering thecompartment h through the screen i strikes the beveled faces ofthe'flanges r t and is thrown in the direction indicated by arrow 15 inFig. 3 against the partition-wall f and by the opening m. A draft beingthus set up in said opening, the vitiated air from the interior of thecar is drawn therethrough in the direction indicated by arrow 16, andbeing carried along by the current, as described, is discharged at therear end of the ventilator compartment h. The flanges orcurrent-directors r if, being disposed at the same side of thesucceeding openings m, cause the air to pass with like effectby each ofsaid openings. The fresh air entering at the same time the compartment 9of the ventilator strikes the vertical side of the flanges r t, and aportion thereof is directed through the opening an in the direction ofarrow 17 in Fig. 3 into the interior of the car, a current also passingby said flanges and being directed by succeeding flanges in thecompartment through corresponding openings m. A constant circulation ofair is thus set up within the car, fresh air entering from theventilatorcompartment g and falling and the heated or vitiated airrising and passing into the compartment h. The amount of air admittedcan easily be regulated by the slides j p in a manner which will beunderstood without a more explicit description.

I do notconfine myself to disposing the v'entilator under themonitor-roof of the car, as it may be placed under the hood or in anyother suitable position; nor do I confine myself to constructing theventilator of a single box divided by the partition f, as twoindependent boxes may be used, respectively arranged to perform thefunctions of the compartments 5 It, said boxes being located indifierent positions in the car, if desired.

Having thus explained my invention, what I claim is 1. A ventilatingdevice for vehicles, comprising a longitudinally-arranged box-openingthrough the ends thereof and divided by a longitudinal partition intotwo compartments, openings leading from the interior of the vehicle intosaid compartments, and ourrent-directors secured Within saidcompartments, respectively, at opposite edges of said openings, thedirectors in one compartment being arranged to throw the fresh-aircurrent against said partition and in the opposite compartment to ejectit through said openings, substantially as described.

2. The ventilator B, provided with the compartments 7L 9 and openings12:, in combination with the beveled flanges or current-di rectors rarranged in said compartmen1s, substantially as described.

3. A ventilating device [or vehicles, comprising two tubes orair-conductors open at their ends and arranged longitudinally of thevehicle, a series of openings in said conductors leading into saidvehicle, and current-directors disposed within said conductors to createa draft from the Vehicle to one conductor and from the companionconductor into said vehicle through said openings, substantially asdescribed.

1. A car A, in combination with the Ventilator B, provided with thecompartments h g, having screened ends iand openings on, means forregulating the currents through said C0111- partments and openings, andthe beveled current-directors r 1, arranged at the edge of saidopenings, substantially as described.

ROBERT (f. NICHOLS. Witnesses:

K. DURFEE, 0. M. SHAW.

